STUDY OF UNSTEADY SHIP MOTION AT A LIMITED DEPTH

Experimental investigations of unsteady ship motion in shallow water have been carried out at the Institute of Hydromechanics AN UkrSSR. Large-scale models were towed through a gravitational-type research pool at various depths. The changes in resistance as a function of model speed during acceleration and consequent inertial path, starting from the instant of automatic removal of the driving force, were studied. A reduction in resistance during acceleration was noticed in the region of critical velocities. Formulas were obtained for the calculation of the instantaneous and average over-a-given-interval arguments for the value of the coefficient of added mass. In general, the work represents a search for approaches to further investigation

• Authors:
  • Yankovskiy, L I
• Publication Date: 1967

Media Info

• Pagination: p. 97-106
• Serial:
  • Gidromekhanika
  • Issue Number: 3

Subject/Index Terms

• TRT Terms: Coefficients; Fluid resistance; Hulls; Mass; Navigation; Ship motion
• Uncontrolled Terms: Hull resistance
• Old TRIS Terms: Added mass; Model testing; Shallow water effects
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00014923
• Record Type: Publication
• Source Agency: Joint Publications Research Service
• Files: TRIS
• Created Date: May 7 1973 12:00AM